No. 4: Challenger disaster

No. 4: Challenger disaster

NASA

No. 4: Main engine exhaust, a solid rocket booster plume and an expanding ball of gas from the external tank is visible seconds after the space shuttle Challnger accident. All seven crew members were killed in the incident, which occurred 73 seconds after launch.

No. 4: Main engine exhaust, a solid rocket booster plume and an expanding ball of gas from the external tank is visible seconds after the space shuttle Challnger accident. All seven crew members were killed in the incident, which occurred 73 seconds after launch. (NASA)

No. 4: Main engine exhaust, a solid rocket booster plume and an expanding ball of gas from the external tank is visible seconds after the space shuttle Challnger accident. All seven crew members were killed in the incident, which occurred 73 seconds after launch.NASA